defs.mm

用于进行gcc测试

/* Check @defs() in Objective-C++ */
/* Contributed by Devang Patel  <[e-mail]>  */

/* { dg-options "-lobjc" } */
/* { dg-do run } */

#include <stdlib.h>
#include <objc/objc.h>
#include <objc/Object.h>

extern void abort(void);

@interface A : Object
{
  @public
    int a;
}
@end

struct A_defs 
{
  @defs(A);
};

@implementation A
- init 
{
  a = 42;
  return self;
}
@end


int main() 
{
  A *a = [A init];
  struct A_defs *a_defs = (struct A_defs *)a;
  
  if (a->a != a_defs->a)
    abort ();	
  
  return 0;
}